-ic a-a a-c a-i aaa aac aai aak aan aao aar aas ac- aca acc aci ack acn aco acr acs ai- aia aic aii aik ain aio air ais aka akc aki akk akn ako akr aks an- ana anc ani ank ann ano anr ans aoa aoc aoi aok aon aoo aor aos ar- ara arc ari ark arn aro arr ars as- asa asc asi ask asn aso asr ass c-- caa cac cai cak can cao car cas cca ccc cci cck ccn cco ccr ccs ci- cia cic cii cik cin cio cir cis cka ckc cki cko cks cn- cna cnc cni cnn cno cnr cns co- coa coc coi cok con coo cor cos cra crc cri crk crn cro crr crs csa csc csi csk csn cso csr css ia- iaa iac iai ian iao iar ias ica icc ici ick icn ico icr ics iia iic iii iin iio iir iis ika ikc iki ikk iko ikr iks in- ina inc ini ink inn ino inr ins io- ioa ioc ioi ion ioo ior ios ir- ira irc iri irk irn iro irr irs is- isa isc isi isk isn iso isr iss ka- kaa kac kai kak kan kao kar kas kca kcc kci kck kcn kcr kcs kia kic kii kik kin kio kir kis kkc kki kkk kkn kkr kks kn- kna knc kni knk knn kno knr koa koc koi kok kon koo kor kos kra krc kri krk krn kro krr krs ksa ksc ksi ksk ksn kso ksr kss n-i naa nac nai nak nan nao nar nas nca ncc nci nck ncn nco ncr ncs nia nic nii nik nin nio nir nis nka nkc nki nkk nkn nko nkr nks nna nnc nni nnk nnn nno nns no- noa noc noi nok non noo nor nos nra nrc nri nrk nrn nro nrr nrs nsa nsc nsi nsk nsn nso nsr nss o-i oaa oac oai oak oan oao oar oas oc- oca occ oci ock ocn oco ocr ocs oia oic oii oik oin oio oir ois oka okc oki okk oko okr oks on- ona onc oni onk onn ono onr ons oo- ooa ooc ooi ook oon ooo oor oos or- ora orc ori ork orn oro orr ors os- osa osc osi osk osn oso osr oss ra- raa rac rai rak ran rao rar ras rca rcc rci rcn rco rcr rcs ria ric rii rik rin rio rir ris rkc rkk rko rks rna rnc rni rnn rno rnr rns roa roc roi rok ron roo ror ros rra rrc rri rrk rrn rrr rrs rsa rsc rsi rsk rsn rso rsr rss saa sac sai sak san sao sar sas sca scc sci sck scn sco scr scs sia sic sii sik sin sio sir sis sk- ska skc ski skk sko skr sks sna snc sni snk snn sno snr sns soa soc soi sok son soo sor sos sr- sra src sri srk srn sro srr srs ss- ssa ssc ssi ssk ssn sso ssr sss